Narrative:

Cruising at FL240 the left engine on the king air 200 made a screeching whine, flames were seen out of the exhaust and the propellers stopped, feathered. I cut off the fuel and closed the fire wall shutoff valve for the left side. Once the rest of the shutdown procedures were completed, my copilot advised center that we had lost an engine. We were vectored to chattanooga, lovell field, and landed there without incident. An emergency was not declared, but the fire crews were there at their own discretion. It was not immediately obvious what had happened to the engine, except that it had ceased. The engine was taken apart and it was discovered that parts of the compressor turbine had entered the power turbine, all the vanes in the compressor section had rubbed the casing and #2 bearing had come apart. Feb/xx/94 a metallurgical report on the compressor turbine wheel showed signs of overaging, but no conclusive answer as to why. The NTSB 830.5(3) requests notification of failure of a turbine engine except for compressor and turbine blades and vanes as in our case, but I would like to have this on file with you.

Google
 

Original NASA ASRS Text

Title: KING AIR 200 EXPERIENCES AN ENG SEIZURE WHILE IN CRUISE AND GOES INTO AUTO FEATHER MODE.

Narrative: CRUISING AT FL240 THE L ENG ON THE KING AIR 200 MADE A SCREECHING WHINE, FLAMES WERE SEEN OUT OF THE EXHAUST AND THE PROPS STOPPED, FEATHERED. I CUT OFF THE FUEL AND CLOSED THE FIRE WALL SHUTOFF VALVE FOR THE L SIDE. ONCE THE REST OF THE SHUTDOWN PROCS WERE COMPLETED, MY COPLT ADVISED CTR THAT WE HAD LOST AN ENG. WE WERE VECTORED TO CHATTANOOGA, LOVELL FIELD, AND LANDED THERE WITHOUT INCIDENT. AN EMER WAS NOT DECLARED, BUT THE FIRE CREWS WERE THERE AT THEIR OWN DISCRETION. IT WAS NOT IMMEDIATELY OBVIOUS WHAT HAD HAPPENED TO THE ENG, EXCEPT THAT IT HAD CEASED. THE ENG WAS TAKEN APART AND IT WAS DISCOVERED THAT PARTS OF THE COMPRESSOR TURBINE HAD ENTERED THE PWR TURBINE, ALL THE VANES IN THE COMPRESSOR SECTION HAD RUBBED THE CASING AND #2 BEARING HAD COME APART. FEB/XX/94 A METALLURGICAL RPT ON THE COMPRESSOR TURBINE WHEEL SHOWED SIGNS OF OVERAGING, BUT NO CONCLUSIVE ANSWER AS TO WHY. THE NTSB 830.5(3) REQUESTS NOTIFICATION OF FAILURE OF A TURBINE ENG EXCEPT FOR COMPRESSOR AND TURBINE BLADES AND VANES AS IN OUR CASE, BUT I WOULD LIKE TO HAVE THIS ON FILE WITH YOU.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.